Zamberlan Men's 308 Trekker RR Hiking Boot 100% Leather Vibram sole Leather and Cambrelle (wicking material) lined with a rubber toe cap for additional protection Zamberlan hydrobloc full-grain waxed leather uppers are highly water resistant providing adequate moisture protection in dry climates without the added heat of a waterproof membrane Vibram rubber outsoles provide excellent traction and durability in a variety of backcountry conditions